胚胎性癌细胞(Embryonal Carcinoma,简称EC细胞)是畸胎癌的恶性干细胞,它既有恶性生长性质,又有类似于早期正常胚胎细胞的多能性,能分化为神经、皮肤、肌肉、软骨和腺管等组织。EC细胞注射到同系小鼠腹腔后,可在腹水中分化并聚积成结构类似于早期胚胎的细胞群,称为拟胚体。 Embryonal Carcinoma (EC) is a malignant stem cell of teratocarcinoma. It has both malignant growth properties and pluripotency similar to that of early normal embryonic cells. It can differentiate into nerve, skin, muscle, cartilage And duct and other organizations. After EC cells are injected into the peritoneal cavity of syngeneic mice, they can differentiate and accumulate in ascites to form cell populations similar in structure to early embryos, called embryoid bodies.